PROCEEDINGS 
OF THE 
ROYAL SOCIETY OE EDINBURGH. 
Vol. XVII. 
SESSION 1889 
CONTENTS. 
Election of Office-Bearers, ... 
Glissettes of an Ellipse and of a Hyperbola. By Professor Tait. (With a 
Plate), . . . . . . . . 2 
Observations upon the Structure of a Genus of Oligochseta belonging to the 
Limicoline Section. By Frank E. Beddard, M.A., F.R.S.E., . . 5 
On Self-conjugate Permutations. By Thomas Muir, M.A., LL.D., . . 7 
On a Rapidly Converging Series for the Extraction of the Square Root. By 
Thomas Muir, M.A., LL.D., . . . . ■ . . 14 
Note on Cayley’s Demonstration of Pascal’s Theorem. By Thomas Muir, 
M.A., LL.D., . .18 
On the Connections of the Inferior Olivary Body. By Alexander Bruce, 
M.A., M.D., F.R.C.P.Ed., F.R.S.E. (With Two Plates), . • . . 23 
Enzyme Action in Lower Organisms. By G. E. Cartwright Wood, M.D., B.Sc., 27 
A New Synthesis of Dibasic Carbon Acids. By Professor Crum Brown, . 53 
The Electrolysis of Potassium-Ethyl Malonate and of Potassium-Ethyl Suc- 
cinate. By Professor Crum Brown and Dr James Walker, . . 54 
The Action of Sodium Carbonate and Bromine on Solutions of Cobalt and 
Nickel Salts. By Dr John Gibson, . . . . 56 * 
On Certain Substances found in the Urine, which reduce the Oxide of Copper 
upon Boiling in the presence of an Alkali. By Herbert H. Ashdown, 
M.D., 
58 
